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Subject: Re: [AN1x] Volume levels to the max on keyboard or mixer? Or neither?

From: "Ed Edwards" <edward.edwards@...>
Date: 2004-01-06

Hi Dale,
It's not probably a matter of personal taste as much as it is a circuit
design thing. Impedance is the ruler in the audio signal chain world. Not
to get too technical it goes something like this:
Impedance is the AC resistance of a circuit. Unfortunately this value
varies over frequency as well as pressure from the input voltage. For
example, your speakers may be rated at 8 ohms. This may be well and good as
an average, but in reality the impedance varies greatly depending on the
input voltage and resistance ---- and further varies in the output system
over each frequency. To give a minimal example: If a constant voltage was
input and swept upwards in frequency a variation in volume must occur in the
output (audio via speakers or via a signal jack).
So my final suggestion is this: Be careful and conservative in how you
pump each stage. The dynamic interaction (read: unpredictable) can be a
blessing or a curse.

Ed Edwards
Leader: Ezekiel's Wheel »»»»Retro-Progressive Rock««««
http://www.untiedmusic.com/ezekiel
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